gustavodemorais commented on code in PR #27996:
URL: https://github.com/apache/flink/pull/27996#discussion_r3125082531
##########
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/serde/RexNodeJsonDeserializer.java:
##########
@@ -374,7 +375,15 @@ private static RexNode deserializeCall(JsonNode jsonNode,
SerdeContext serdeCont
} else {
callType = serdeContext.getRexBuilder().deriveReturnType(operator,
rexOperands);
}
- return serdeContext.getRexBuilder().makeCall(callType, operator,
rexOperands);
+ // SqlDefaultArgOperator is constructed per-call site by
FlinkSqlCallBinding and not
Review Comment:
Added a test
##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/plan/nodes/exec/stream/FromChangelogTestPrograms.java:
##########
@@ -183,6 +183,49 @@ public class FromChangelogTestPrograms {
+ "input => TABLE changelog_view)")
.build();
+ //
--------------------------------------------------------------------------------------------
+ // Restore tests
+ //
--------------------------------------------------------------------------------------------
+
+ /**
+ * Append source with retract op codes through FROM_CHANGELOG, split
across a compiled-plan +
+ * savepoint restore. The unprovided {@code op} and {@code op_mapping}
args become {@code
+ * DEFAULT()} placeholders that survive {@code toUdfCall} and reach
codegen on the restore path
+ * - exercising the {@link
org.apache.flink.table.planner.functions.sql.SqlDefaultArgOperator}
Review Comment:
Simplified - also removed "The unprovided {@code op} and {@code op_mapping}
args become {@code * DEFAULT()} placeholders."
##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/plan/nodes/exec/stream/FromChangelogRestoreTest.java:
##########
@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.table.planner.plan.nodes.exec.stream;
+
+import
org.apache.flink.table.planner.plan.nodes.exec.testutils.RestoreTestBase;
+import org.apache.flink.table.test.program.TableTestProgram;
+
+import java.util.List;
+
+/**
+ * Restore tests for the built-in FROM_CHANGELOG PTF. Verifies that {@link
+ * org.apache.flink.table.planner.functions.sql.SqlDefaultArgOperator}
placeholders for unprovided
+ * optional args round-trip through compiled-plan serialization.
Review Comment:
done
##########
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/serde/RexNodeJsonDeserializer.java:
##########
@@ -374,7 +375,15 @@ private static RexNode deserializeCall(JsonNode jsonNode,
SerdeContext serdeCont
} else {
callType = serdeContext.getRexBuilder().deriveReturnType(operator,
rexOperands);
}
- return serdeContext.getRexBuilder().makeCall(callType, operator,
rexOperands);
+ // SqlDefaultArgOperator is constructed per-call site by
FlinkSqlCallBinding and not
+ // registered in any operator table, so the lookup above falls through
to Calcite's stock
+ // SqlStdOperatorTable.DEFAULT_OPERATOR. Rebuild the typed Flink
instance here so codegen's
+ // `op instanceof SqlDefaultArgOperator` check (StringCallGen)
recognizes it on restore.
Review Comment:
Done
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